Isaiah best



(No Model.)

1. BEST.

IRON HARROW.

Patented Aug. 2,1881.

' n enir Minesqes UNITED STATES PATENT OFFICE.

ISAIAH BEST, OF MOUNT PLEASANT, ONTARIO, CANADA.

IRON HARROW.

SPECIFICATION forming part of Letters Patent No. 245,052, dated August 2, 1881.

.Application filed September 15, 1880. (No model.) Patented in Canada April 7, 1880.

To all whom it may concern:

Be it known that I, ISAIAH BEsT, a citizen of the Dominion of Canada, residing at Mount Pleasant, in the county of Durham, in the Province of Ontario, have invented certain useful Improvements on Iron Harrows, (for which I have obtained a patent in the Dominion ofOanada, hearing date April 7, 1880,) of of which the following is a specification.

My invention relates to the joint-bar, it being short, and only reaching from one tooth-bar to another, one end of it being fastened to the bar in the same manner as the tooth, and the other end forming the hinge at the bar; and by having the hinge immediately at the bar it admits any one of the bars to rise or fall Without displacing any of the others, and enables the harrow to adjust itself to uneven surfaces.

Fignre 1 is a plan of a section of a harrow embodying my invention. Fig. 2 is a side view of the same. Fig. 3 is the joint-bar. Figs. 4. and 5 are the clip and staple.

A is a straight bar of iron with a draft-hookturned on one end to attach the draw-bar to.

B is the tooth, fastened to the barA by means of the clip 0 and the staple D.

E is the joint-bar, with one end fastened to the bar A in the same manner as the tooth B,

and having an eye turned on the other end to receive the next bar A, and also to form the hinge or joint.

I am aware that hinged or flexible harrows have long been in use, some having two bars or sets of teeth held rigidly together with hinges between sections; others with hinges midway between single-tooth bars, allowing great deflection of the teeth from an upright position, materially affecting the eflieiency of the machine when at work.

In my-device the teeth are more firmly held to their work, and at the same time each bar or set of teeth accommodates its action to severe obstructions.

I claim- In a flexible or hinged iron harrow, the jointbar E, fastened by the clip 0 and staple D at one end, and having an eye on the other end to receive the tooth bar A, in combination with said tooth-bar and the adjustable teeth, substantially as and for the purposes described.

ISAIAH BEST.

Witnesses:

J. W. GREEK, MATT. MCINDRO. 

